"The Lesson" is the tenth episode of Season Eight of Criminal Minds.
The BAU investigates a serial killer who oddly disposes his victims in Arizona. Also, Reid gets anxious when faced with the possibility of meeting his mystery woman.
- Michael Charles Boucher - Evan Davis
- Jake Brennan - Matt Small
- Gary Cervantes - Detective Martin
- Noah Darden - Young Adam Rain
- Brad Dourif - Adam Rain
- Kurtis James Erwin - Byron Sadler
- Hanna Hall - Connie Foster
- John Hawkinson - Alex Rain
- Jay Hayden - Bobby Putnam
- Hans Howes - Mr. James
- Matt Kirkwood - George Small
- Suzanne Krull - Doctor Glenn
- Mark Povinelli - Mr. Conrad
- Beth Riesgraf - Maeve Donovan
- Wendy Rosoff - Lucille
- Maya Stojan - Hostess
- Steve Suh - CSI Tech
- Sean Whalen - Tucker White
- "Where Is My Mind?" by Rockabye Baby - Lullaby Renditions of The Pixies (Original by The Pixies)
- Spencer Reid: William Shakespeare once wrote, "Love looks not with the eyes but with the mind."
- Spencer Reid: Thomas Merton once wrote, "Love is our true destiny. We do not find the meaning of life by ourselves alone; we find it with another."